Data Saved To Stack Memory (Mki Mode); Data Restored From Stack Memory (Mki Mode) - NEC PD754144 User Manual

PUSH instruction
Stack
SP – 2 Register pair, low
SP – 1 Register pair, high
SP
Figure 4-10. Data Restored from Stack Memory (MkI Mode)
POP instruction
Stack
SP Register pair, low
SP + 1 Register pair, high
SP + 2
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CHAPTER 4 INTERNAL CPU FUNCTION
Figure 4-9. Data Saved to Stack Memory (MkI Mode)
CALL, CALLF instruction
SP – 4 PC11-PC8
SP – 3 MBE RBE
SP – 2 PC3-PC0
SP – 1 PC7-PC4
SP
RET, RETS instruction
SP PC11-PC8
SP + 1 MBE RBE
SP + 2 PC3-PC0
SP + 3 PC7-PC4
SP + 4
User's Manual U10676EJ3V0UM
Stack
SP – 6
0 0 SP – 5
SP – 4
SP – 3
SP – 2
SP – 1
SP
Stack
SP
0 0 SP + 1
SP + 2
SP + 3
SP + 4
SP + 5
SP + 6
Interrupt
Stack
PC11-PC8
MBE RBE 0 0
PC3-PC0
PC7-PC4
IST1 IST0 MBE RBE
PSW
CY SK2 SK1 SK0
RETI instruction
Stack
PC11-PC8
MBE RBE 0 0
PC3-PC0
PC7-PC4
IST1 IST0 MBE RBE
PSW
CY SK2 SK1 SK0